CVE-2026-27694

traccar allows stored HTML injection in notification emails

State: Published
Severity: 5.4 Medium
Published: May 5, 2026
Updated: May 5, 2026
Reserved: Feb 23, 2026

Description

Traccar is an open source GPS tracking system. In org.traccar:traccar versions starting at 6.11.1 before 6.13.0, the email notification templates insert user-controlled device, geofence, and driver names into HTML email output without proper escaping. An attacker with low privileges can store crafted HTML in these fields, which is then rendered in notification emails sent to other users with access to the affected devices. This can lead to phishing or spoofed email content. This issue is fixed in version 6.13.0.

Scores

CVSS	Score	Vector	Source
3.1	5.4 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N	GitHub_M

Weaknesses

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected Products

Product	Versions
traccartraccar	>= 6.11.1, < 6.13.0Affected

References

https://github.com/traccar/traccar/security/advisories/GHSA-6hfr-mj4m-hrvv

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